142456328 has 48 divisors (see below), whose sum is σ = 329007420. Its totient is φ = 57458688.

The previous prime is 142456297. The next prime is 142456373. The reversal of 142456328 is 823654241.

It can be written as a sum of positive squares in 2 ways, for example, as 140612164 + 1844164 = 11858^2 + 1358^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4025 + ... + 17352.

Almost surely, 2^142456328 is an apocalyptic number.

It is an amenable number.

142456328 is an abundant number, since it is smaller than the sum of its proper divisors (186551092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142456328 is a wasteful number, since it uses less digits than its factorization.

142456328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21414 (or 21403 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 142456328 is about 11935.5070273533. The cubic root of 142456328 is about 522.2685992580.

The spelling of 142456328 in words is "one hundred forty-two million, four hundred fifty-six thousand, three hundred twenty-eight".